Coal-separator.



S. T. PRATT.

COAL SEPARATOR.

APPLIOATIQN FILED AUG. 21, 1912.

1,058,259. Patented A r. 8, 1913.

2 SHEETS-SHEET 1.

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lnuzmtoz Witnesses S. T. PRATT.

GOAL SEPARATOR.

APPLICATION FILED AUG. 21, 1912.

Patented Apr. 8, 1913.

2 SHEETS-SHEET 2.

6' 70 6' 6 x mum, V v 6 (9 5 17 i 75 7 Y 74 7 A 2 L5 42 1 lmuewboo UNITED sTATEs PATENT oFEioE.

SAMUEL T. PRATT, OF \NANTICOKE, PENNSYLVANIA.

COAL-SEPARATOR.

Specification of ltetters Patent.

Patented Apr. 8, 1913.

Application filed August 21, 1912. Serial No. 716,265. I

T0 (177 11-720)) 2'2 may concern:

Be it known that I, SAMUEL T. PRATT, a citizen of the United States, residing at Nanticoke, in the county of Luzerne and State of Pennsylvania, have invented certain new and useful Improvements in Q0211- Separators, of which the following is. a specification, reference being had to the accompanying drawings.

The present invention comprcnends certain new and useful improvements in separators of the centrifugal type and relates particularly to a separator with an improved construction designed especially for the use of separating coal from bone and slate or similar products and to jostle the particles thereof together and separate them according to their specific gravity.

The invention has for its primary object a simple, durable and efiicient construction of an apparatus of this character, the parts of which may be cheaply manufactured and readily assembled and installed and which.

the precise structural details therein exhibited but. the right is reserved to any changes, alterations and modifications to which recourse may be had within the scope of the invention and without departing from the spirit or sacrificing the etliciency of the same.

In the accompanying drawings, Figure 1 is a plan view embodying my invention; Fig. 2 is a side-elevation of the same; Fig. 3 is a transverse section taken on the line 3-3 of Fig. 1; Fig. 4 is a plan view of the frame with the table removed; Fig. 5 is a side elevation of a modification.

Reference now being had to the accomanying drawings, wherein like parts are esignated by corresponding numerals throughout the several views, the device is filling made of In the said drawings has been illussupported upon a framework of any suitable const-ructlon, but preferablyof the construction as illustrated in the drawings.

This framework comprises vertical supporting members 1 connected at their upper ends by a pair of longitudinally extending membars 2 which are connected by a plurality of transverse members 3. A

A pair of transversely extending blocks 4 are mounted upon the transverse members 3 and have secured thereupon bearing blocks 5 in which are rotatably mounted flanged rollers 6. A pair of diametrically oppositely arranged blocks 7 are mounted upon the longitudinally extending beams 2 and have mounted thereupon journaled blocks 8 which also have ournaled therein rollers similar to the flanged rollers G. The lower face of the table has depend,

ing therefrom a track 8 which is mounted upon the rollers and forms means for supporting the table whereas the flanges formed uponv the rollers will prevent any lateral movement of the table during its rotation.

The rotating table indicated by the numeral 9has a recess formed in the upper face thereof in which is adapted to resta slate or any other suitable material which will ofi'er but little resistance to the coal as the same passes over the table. Formed within the center of this table is an opening 10 having extending therefrom a conical chute 11 which is in communication with a chute 12 supported upon the floor upon which the device is mounted. The lower extremity of this chute 11 has adjustably mounted thereon a beveled gear 13. This beveled gear is permanently held upon the portion 11 of the table by means of a ring 14.

A longitudinally extending shaft 15 is journaled upon the transverse block 4; and has keyed to one end thereof a beveled gear 16 which meshes with the beveled gear 13 of the table and the opposite extremity of this shaft 15 is keyed to a pulley 17 which is operatively connected with a suitable source of power, not shown.

A transversely extending beam 18 is supported upon the rear end of the framework and has mounted thereupon thrust bearings 19. These thrust bearings have journaled therein'vertically extending posts 20 and are also provided with set screws by which the posts 20 may be held in the desired adjusted position. Deflector plates 21 are adjustably mounted within elongated slots formed within the upper end of the posts 20 and the free ends of these plates are adapted to rest upon the upper face of the rotating table. Mounted adjacent the opposite end of the frame to that of which the deflectors or separating plates are mounted is a delivery chute 22 having its lowermost edge terminating adjacent the outer periphery of the table.

It is obvious from the foregoing description that in constructing a separator of this character the same is-provided with three chutes, the center one for the reception of the coal and the passageways formed between tlie deflector plates form a spout or chute for hone,'slate orstone, or any other substance according to their specific gravity. The substance will be delivered through the chute 22 to the tablewhich is rotating at a rapid speed and force is given to the substance due to gravity" and as the same strikes the plate the coal, which is lighter than the other substance, will travel across the plate and offer less resistance due to the slate construction of the upper face of the table and is then discharged within the opening 10 formed within the center thereof. The bone which is included in the substance will ofler but little resistance to the table as it has a greater weight than the coal and would obviously take the passageway formed between the first deflector plates, whereas the slate or stone, which has a greater weight, will take toward the outer periphery of the table and consequently be discharged through the passageway formed by the outer deflector plates.

It is apparent that this separator may be used for separating various substances and the deflector plates may be adjusted at anyangle or as many may be mounted upon the framework as desired for catching the different particles due to-their specific gravity.

It is further apparent, from the drawings,

that the table will be cleared of any substance upon each revolution the delivery chute.

In the modification as better illustrated in Fig. 5 of the drawing, I have provided a rotary table having the upper face thereof inclined toward the outer edges thereof. This upper face may be made of slate or any other similar material which will offer but little resistance to the ore as it is placed thereupon. When using a table of this character, the end of the chute terminates udjacent the center portion thereof and the difl'erent particles of the orewill be separated to the deflector plates according to their specific gravity as before described.

-Having thus described my invention what I claim is:

1. In combination, a circular annularly recessed table, a slate filling for the recess, means supporting the table for rotation, means for rotating the table, centrally disposed. discharge means, means for feeding the material to the table with an impetus toward the center, and means for discharging over the periphery the material remaining upon the table.

2. In combination, a circular table having a discharge opening formed in the center thereof, annularly arranged flanges disposed upon the said table to form a recess, a slate filling for the recess, means supporting the table for rotation, means for rotating the table, means for feeding the material to the table with an impetus toward the center, and a plurality. of deflector plates adjustable to and from the center of the table for discharging over the periphery the material remaining upon the table.

In testimony whereof I hereunto afiix my signature in the presence of two witnesses.

SAMUEL T. PRATT.

Witnesses:

WM. L. JACOBUS, F. H. KOHLBRAKE.

at the point of 

